Author(s): Hao Lei, Wei Zhang, Ibrahim Oraiqat, Zhipeng Liu, Jun Ni, Xueding Wang, Issam El Naqa ABSTRACT Purpose: To study, using phantoms made from biological tissues, the feasibility and practical challenges of monitoring the position of the radiation beam and the deposited dose by x-ray acoustic computed tomography (XACT) during external beam radiotherapy delivery. Material and methods: A prototype XACT system […]
Tag: Legion AMP
SCIENTIFIC PRESENTATIONS USING PHOTOSOUND PRODUCTS AT SPIE 2024
We look forward to seeing you at one of the scientific presentations using PhotoSound Technologies, Inc. products during SPIE Photonics West 2024. See the list of presentations below. 12842-15 The new development of ionizing radiation acoustic imaging (iRAI) for mapping the dose deep in the patient body during radiation therapy Author(s): Wei Zhang, Dale Litzenberg, […]
MONODISPERSE SUB-100 NM AU NANOSHELLS FOR LOW-FLUENCE DEEP-TISSUE PHOTOACOUSTIC IMAGING
Author(s): Luis D. B. Manuel, Vinion Devpaul Vincely, Carolyn Bayer, and Kevin M. McPeak ABSTRACT Nanoparticles with high absorption cross sections will advance therapeutic and bioimaging nanomedicine technologies. While Au nanoshells have shown great promise in nanomedicine, state-of-the-art synthesis methods result in scattering-dominant particles, mitigating their efficacy in absorption-based techniques that leverage the photothermal effect, […]
WHOLE-BODY HUMAN ULTRASOUND TOMOGRAPHY
Author(s): D. C. Garrett, J. Xu, D. Oh, Y. Aborahama, G. Ku, K. Maslov, W. W. Tseng, and L. V. Wang ABSTRACT We developed a system for whole-body human ultrasound tomography in reflection andtransmission modes. A custom 512-element ultrasound receiver array with a rotating single-element ultrasound transmitter are used to generate 2D isotropically resolved images […]
COMPARATIVE EVALUATION OF A NIR-II NANOPARTICLE WITH AND WITHOUT THE LEGION AMP
Overview: The Legion AMP webinar series is hosted by PhotoSound Technologies Marketing Specialist Sarah Argo. In the first webinar of the Legion AMP Webinar Series, Sergey Ermilov (CEO), discussed the Legion AMP design, motivation, and benefits in relation to how it could optimize your research. Vinoin Devpaul Vincely, from Carolyn Bayer’s lab at Tulane University, […]
FIBER TIP TRACKING WITH PHOTOACOUSTIC IMAGING BY USING LEGION AMP
Overview: The Legion AMP webinar series is hosted by PhotoSound Technologies Marketing Specialist’s Sarah Argo. In the second webinar of the Legion Amp Webinar Series, Samuel Toler (System Test Engineer I), discussed the Legion Amp design, motivation, and benefits in relation to how it could optimize your research. Samuel John and Dr. Yan Yan, from […]
DUAL-MODALITY X-RAY-INDUCED RADIATION ACOUSTIC AND ULTRASOUND IMAGING FOR REAL-TIME MONITORING OF RADIOTHERAPY
This is the third webinar of the Legion AMP webinar series, hosted by PhotoSound Technologies. This webinar covers dual-modality, ultrasound, and thermoacoustic imaging in real-time, while using an ionizing radiation source, for the purpose of monitoring radiation therapy, as presented by Dr. Wei Zhang from the Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, […]
TECHNICAL CONSIDERATIONS IN THE VERASONICS RESEARCH ULTRASOUND PLATFORM FOR DEVELOPING A PHOTOACOUSTIC IMAGING SYSTEM
Authors: Karl Kratkiewicz, Rayyan Manwar, Yang Zhou, Moein Mozaffarzadeh, Kamran Avanaki Fig. 10. PA signal amplification. (A) System setup to test the Photosound AMP128-18 amplifier: (i) display monitor, (ii) Nd:YAG laser head, (iii) fiber optic bundle, (iv) laser power supply, (v) laser chiller. (B) Wire imaging results: wire phantom suspended in 0% intralipid imaged (i) without […]
DUAL-MODALITY X-RAY-INDUCED RADIATION ACOUSTIC AND ULTRASOUND IMAGING FOR REAL-TIME MONITORING OF RADIOTHERAPY
Authors: Wei Zhang,1 Ibrahim Oraiqat,2 Hao Lei,3 Paul L. Carson,1,4 Issam EI Naqa,2 and Xueding Wang1,4 ABSTRACT Objective. The goal is to increase the precision of radiation delivery during radiotherapy by tracking the movements of the tumor and other surrounding normal tissues due to respiratory and other body motions. Introduction. This work presents the recent advancement of X-ray-induced radiation acoustic imaging (xRAI) […]
TRANSFONTANELLE PHOTOACOUSTIC IMAGING: ULTRASOUND TRANSDUCER SELECTION ANALYSIS
Authors: Rayyan Manwar, Tarikul Islam, MD, Seyed Mohsen Ranjbaran, Kamran Avanaki ABSTRACT Transfontanelle ultrasound imaging (TFUI) is the conventional approach for diagnosing brain injury in neonates. Despite being the first stage imaging modality, TFUI lacks accuracy in determining the injury at an early stage due to degraded sensitivity and specificity. Therefore, a modality like photoacoustic […]
